package org.mercury_im.messenger.ui.chat;

import android.os.Bundle;
import android.util.Log;
import android.view.Menu;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import androidx.lifecycle.LiveData;
import androidx.lifecycle.Observer;
import androidx.lifecycle.ViewModelProviders;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import org.jxmpp.jid.EntityBareJid;
import org.jxmpp.jid.impl.JidCreate;
import org.mercury_im.messenger.MercuryImApplication;
import org.mercury_im.messenger.R;
import org.mercury_im.messenger.persistence.model.AccountModel;
import org.mercury_im.messenger.persistence.model.MessageModel;
import org.mercury_im.messenger.persistence.repository.AccountRepository;
import org.mercury_im.messenger.persistence.repository.MessageRepository;

import java.util.List;

import javax.inject.Inject;

import butterknife.BindView;
import butterknife.ButterKnife;
import io.reactivex.Maybe;

public class ChatActivity extends AppCompatActivity implements ChatInputFragment.OnChatInputActionListener {

    public static final String EXTRA_JID = "JID";
    public static final String EXTRA_ACCOUNT = "ACCOUNT";

    @Inject
    AccountRepository accountRepository;

    @Inject
    MessageRepository messageRepository;

    @BindView(R.id.toolbar)
    Toolbar toolbar;

    @BindView(R.id.recyclerView)
    RecyclerView recyclerView;

    private ChatViewModel chatViewModel;

    private EntityBareJid jid;

    private long accountId;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Log.d("Mercury", "onCreate");
        setContentView(R.layout.activity_chat);
        ButterKnife.bind(this);

        setSupportActionBar(toolbar);
        MercuryImApplication.getApplication().getAppComponent().inject(this);

        ChatRecyclerViewAdapter adapter = new ChatRecyclerViewAdapter();
        recyclerView.setAdapter(adapter);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));

        if (savedInstanceState == null) {
            savedInstanceState = getIntent().getExtras();
            if (savedInstanceState == null) return;
        }

        String jidString = savedInstanceState.getString(EXTRA_JID);
        if (jidString != null) {
            getSupportActionBar().setTitle(jidString);
            jid = JidCreate.entityBareFromOrThrowUnchecked(jidString);
            accountId = savedInstanceState.getLong(EXTRA_ACCOUNT);

            Maybe<AccountModel> accountModel = accountRepository.getAccount(accountId);
            chatViewModel = ViewModelProviders.of(this).get(ChatViewModel.class);

            /*
            accountModel.observe(this, new Observer<AccountModel>() {
                @Override
                public void onChanged(AccountModel accountModel) {
                    chatViewModel.init(accountModel, jid);
                }
            });

            LiveData<List<MessageModel>> messages = messageRepository.getAllMessagesOfChat(accountId, jid);
            messages.observe(this, new Observer<List<MessageModel>>() {
                @Override
                public void onChanged(List<MessageModel> messageModels) {
                    Log.d(MercuryImApplication.TAG, "Updating messages: " + messageModels.size());
                    adapter.updateMessages(messageModels);
                    recyclerView.scrollToPosition(messageModels.size() - 1);
                }
            });

            getSupportFragmentManager().beginTransaction().replace(R.id.stub_compose, ChatInputFragment.newInstance())
                    .commitAllowingStateLoss();
                    */
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_chat, menu);
        return true;
    }

    @Override
    protected void onSaveInstanceState(@NonNull Bundle outState) {
        outState.putString(EXTRA_JID, jid.toString());
        outState.putLong(EXTRA_ACCOUNT, accountId);
        super.onSaveInstanceState(outState);
    }

    @Override
    public void onButtonMediaClicked() {

    }

    @Override
    public void onComposingBodyChanged(String body) {

    }

    @Override
    public void onComposingBodySend(String body) {
        String msg = body.trim();
        if (msg.isEmpty()) {
            return;
        }
        /*
        new Thread() {
            @Override
            public void run() {
                try {
                    ChatManager.getInstanceFor(connectionService.getConnection(accountId).getConnection())
                            .chatWith(jid).send(msg);
                } catch (SmackException.NotConnectedException e) {
                    e.printStackTrace();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }.start();
        */
    }
}